Product Catalogue

MINICOMB®

Switchesfor Pressure and Vacuum

PL ATEX

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Absolute Pressure (Pabs)Absolute pressure always refers to the absolute vacuum, i.e. the zero-point is the absolute vacu-um.A pressure gauge with measuring range 0 - 10 bar absolute shows the current ambient pressure (Pamb) when in nonoperating state/not installed.

Ambient Pressure (Pamb)The atmospheric pressure is the ambient pressu-re.

Atmospheric Pressure Difference (Pe)The atmospheric pressure difference, also called positive pressure (Pe+) respectively negative pressure (Pe-) is the most commonly measured type of pressure in the technical field.It refers to atmospheric pressure (Pamb) and is the difference between the atmospheric pressure (Pamb) and absolute pressure (Pabs).

Pe = Pabs - Pamb

Pe becomes positive when the absolute pressu-re is higher than the athmospheric pressure; Pe becomes negative when the absolute pressure is lower than the atmospheric pressure. A pressure gauge with measuring range 0 - 10 bar relative shows 0 bar when in nonoperating state/not installed.

Differential Pressure (DP)Differential pressure is the pressure difference (∆P) between to measured pressures (P1, P2).

∆P = P1 - P2

Differential pressure instruments are universal, as they can be used to as a relative pressure instru-ment or for hydrostatic level measurement.

DEFINITION OF PRESSURE

Pressure (P) besides temperature is one of the most frequently measured physical units.The unit „Pascal“ (Pa) is the SI unit of pressure within the metric unit system.In Europe „bar“ is the most commonly used (SI) unit. It roughly equals with the magnitude of the atmospheric pressure.

1 bar = 0,1 MPa = 0,1 N/m2 = 105 Pa

Particularly in the anglo-american influenced re-gion „psi“ (pounds per square inch) is the most common unit.The general term „pressure“ is not always very clear:

In technical usage several types of pressure are differentiated, mainly differences between two pressure points, which in general linguistic usage all are called pressure.

To avoid confusion, the various types of pressure are distinguished according to their point of refe-rence:

A force applied uniformly over a certain area is called pressure:

p = F / A

(pressure = force / area)

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WHAT IS A PRESSURE SWITCH ?

Pressure switches are signal elements, that can be used for measuring pressure in pressure lines for gases, vapours or liquids.

In general pressure swit-ches have one or more fixed or adjustable switching con-tacts.

Each switching contact has a setpoint (● SP). This set-point corresponds to a pres-sure value setted on the pressure switch.

When rising above or fal-ling below this value the switching contact within the pressure switch is triggered.

Due to inaccuracy the re-set point (● BSP) does not exactly match the setpoint. The difference between setpoint and re-setpoint is called hysteresis or switching differential (↕ SD)

WHAT IS A MINICOMB® PRESSURE SWITCH?

The MINICOMB® pressure switch series is a very compact-sized pressure switch for measuring compressed air, low-viscous media and non-ag-gressive gases. It is based on a force-balance measuring system with bellows sensors actuating one switching con-tact. The force-balance measuring system with bellows sensors is friction-free and features high repeatability and very good longterm-stability.

The MINICOMB® is available with pressure range 0,2 - 16 bar, -0,9 - 0 bar or -0,9...+1 bar. Sub-base moun-ting or female threads are availbe for connecting to the process, while 4-pin plug according to ISO 4400 or plug M12x1 are available for electrical con-nection.

The MINICOMB® pressure switch series is appro-ved for applications where PLc (Performance Le-vel according to ISO 13849) is at least required (PLr) as well as for applications within hazardous area (zone 2 / 22 according to ATEX Directive 94/9/EC).

Once the switching contact is triggered, setted pressure values are transformed into electrical or pneumatic signals which are necessary for the

control and regulation of processes, e.g. safety and alarm devices.

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MINICOMB® Pressure Switch

• friction-free force-balance measuring system

• high repeatability

• very good longterm stability

• pressure ranges -0,9... 0 (+1) bar or 0,2 - 16 bar

• process connection 1/4“ ISO 228 female or sub- base mounting

• electrical connection plug ISO 4400 or plug M12x1

• approved for applications with PLr = PLc

• approved for ATEX zones 2 / 22

DescriptionThe MINICOMB® Series is a very compact-sized pressure switch for measuring compressed air, low-viscous media and non-aggressive gases.

Operating PrincipleThe principle of operation is the balance of forces. The wor-king force within each bellow is counter-balanced by adjus-table steel springs. This system actuates a microswitch when the working pres-sure overcomes the opposing force. The measuring system operates without any pistons or dia-phragms, thus completly friction-free, resulting in minimal wear and no maintenance.

PL

ApprovalsPerformance Level (ISO 13849)PLc

ATEX ATEX-Directive 94/9/ECZone 2 / Zone 22

MINICOMB with sub-base mounting

MINICOMB with 1/4“ female ISO 228 thread

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Technical Data Standard OptionsFunction mechanical pressure switch; force-balance measuring system with bellows sensor

Life Cycle at least 10 mio switch cycles

Pressure Range 0,2 - 16 bar

Vacuum Range -0,9 - 0 bar

Pressure-/Vacuum Range) -0,9...+1 bar

Overpressure Safety 25 bar

Vacuum Safety -1 bar

Enclosure Material Aluminium

Wetted Parts Material Aluminium, Brass, NBR (Gasket) FKM (Gasket)

Permissalbe Media Temperature -10...+80°C

Permissable Ambient Temperature -20...+80°C

Temperature Deviation approx. 1% per 20°C

Factory Adjustment Temperature 20°C on request

Switching Contact 1 micro switch (SPDT)

Adjustment Accuracy < 1,0% FS

Switching Accuracy < 1,0% FS

Repeatability < 1,0% FS

Switching Differential (Hysteresis) < 4,0% FS on request

Process Connection (alternatively) sub-base mounting;

sub-base mounting CNOMO; 1/4“ female ISO 228 thread;

Electrical Connection (alternatively) Stecker EN175 301-803-A (ISO 4400);Stecker M12x1

Weight approx. 160 g

Protection IP65 (IP67 with plug M12x1)

Schock Resistance (XYZ-Direction) 15 g (IEC 60068-2-64)

Vibration Resistance (XYZ-Direction) 10 g (60 - 500 Hz) (IEC 60068-2-6)

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DIMENSIONS (VERSION WITH PLUG ISO 4400)

MINICOMB sub-base mounting and plug ISO 4400

MINICOMB 1/4“ female ISO 228 thread mounting and plug ISO 4400

MINICOMB sub-base mounting CNOMO and plug ISO 4400

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DIMENSIONS (VERSION WITH PLUG M12X1)

MINICOMB sub-base mounting and plug M12x1

MINICOMB sub-base mounting CNOMO and plug M12x1

MINICOMB 1/4“ female ISO 228 thread mounting and plug M12x1

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ELECTRICAL DATACategory AC-12 / DC-12

U [V] 30V 48V 60V 125V 250V

version with plug ISO4400

I [A] AC 3 3 3 3 3

I [A] DC 2 0,55 0,4 0,15 ---

version with plug M12x1

I [A] AC 3 --- --- --- ---

I [A] DC 2 --- --- --- ---

reference switch cycle: 30/minreference temperature: +30°CAC = cos phi ca. 0,7°DC = L/R ca 10ms

Switching Capacitymax. steady current I max [A] on inductive load

Switching Capacitymax. steady current I max [A] on ohmic load

U [V] 30V 48V 60V 125V 250V

version with plug ISO4400

I [A] AC 5 3 5 5 5

I [A] DC 3 1,2 0,8 0,4 ---

version with plug M12x1

I [A] AC 4 --- --- --- ---

I [A] DC 3 --- --- --- ---

reference switch cycle: 30/minreference temperature: +30°C

Electrical Connectionshown in zero pressure condition

plug ISO 4400 plug M12

plug ISO4400

plugM12

micro switch

+UB 1 1

normally closed 2 2

normally open 3 4

GND 4 ---

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ORDER-CODESmost common options

Pressure Range

Electrical Connection Process Connection Remarks Order-Code

0,2 - 16 bar

ISO 4400

Sub-base mounting1 C0011F-199-PAO

ATEX, 1 C0111F-199-PAO

Sub-base mounting CNOMO 1 C0011F-199-CAO

1/4“ female ISO 228 thread2 C0051F-199-4AO

ATEX, 2 C0151F-199-4AO

M12

Sub-base mounting1 C0011F-199-PDO

ATEX, 1 C0111F-199-PDO

Sub-base mounting CNOMO 1 C0011F-199-CDO

1/4“ female ISO 228 thread2 C0051F-199-4DO

ATEX, 2 C0151F-199-4DO

-0,9...0 bar

ISO 4400

Sub-base mounting1 C0011F-300-PAO

ATEX, 1 C0111F-300-PAO

1/4“ female ISO 228 thread2 C0051F-300-4AO

ATEX, 2 C0151F-300-4AO

M12

Sub-base mounting1 C0011F-300-PDO

ATEX, 1 C0111F-300-PDO

1/4“ female ISO 228 thread2 C0051F-300-4DO

ATEX, 2 C0151F-300-4DO

-0,9...+1 bar

ISO 4400

Sub-base mounting1 C0011F-301-PAO

ATEX, 1 C0111F-301-PAO

1/4“ female ISO 228 thread2 C0051F-301-4AO

ATEX, 2 C0151F-301-4AO

M12

Sub-base mounting1 C0011F-301-PDO

ATEX, 1 C0111F-301-PDO

1/4“ female ISO 228 thread2 C0051F-301-4DO

ATEX, 2 C0151F-301-4DO

1) Counter plug and installation screws within scope of delivery2) Counter plug within scope of delivery

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CONVERSION TABLE FOR PRESSURE UNITS

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INQUIRY CHECKLIST PRESSURE SWITCHES (BY FAX TO +49-6262-92670-99)

PINTER Mess- und Regeltechnik GmbHKraichgaublick 17Technologiepark Neckartal-Odenwald74847 Obrigheim, Germany

Phone +49-6262-92670-0Fax +49-6262-92670-99E-Mail info@pinter-gmbh.deInternet www.pinter-gmbh.com C

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All given information and/or technical data in this document have been prepared very carefully and reflect the state of the art when printed. Infor-mation and/or technical data may change without prior notice.All given information and/or technical data in this document are not bin-ding and for information purposes only. Binding information and/or techni-cal data can be obtained from our quotations and/or order confirmations.Please understand that we cannot be held responsible for the correct-ness of any given information and/or technical data in this document.

When installing or maintaining PINTER products always refer to the cor-responding operating manual and technical data sheet.

All mentioned product names, product designations, product descriptions and logos are trademarks and property of their respective owners.CHEMSEAL, DIMIO, INDUSENS, INDUSWITCH, INTELLICOMB, MA-NOCOMB, MINICOMB are trademarks and/or registered trademarks of the PINTER Mess- und Regeltechnik GmbH and/or their affiliated com-panies in Germany, the European Union, Switzerland and/or other coun-tries. The use of PINTER trademarks is prohibited if not clearly agreed otherwise.